It tracks kills, deaths, killstreaks, and K/D ratios.
If "Killsults" was a misspelling of "Results" or "Insults" (for a joke library), you might just be looking for how to generate reports in JS. Killsults.js
Platforms like LabKey allow developers to write "starter code" to render data grids into custom visual reports. It tracks kills, deaths, killstreaks, and K/D ratios